Read my v8 Evap results - Are they correct?

To keep this simple, Ill just say that I have a 2004 4Runner v8 and drive train in my 1999 Tacoma. I am trying to us the stock 99 Evap box (mounted on the driver inner fender behind the fuse block). The 2004 4runner uses an Evap box that is mounted under the body, by the tank. I am attempting to use the old style evap system to keep from having to swap a pile of parts...


with that said, I have come up with a system that seems to function. I have the Fleebay version of Toyota's Techstream. With this I have gotten the following results. Teachstream has a 6 step process.


Step 1: Pressure Equalize

Vapor Pressure (Gauge) [VP G] : .735
Vapor Pressure (Absolute)[VP A] : 762.7

Purge VSV - Closed
CCV- Open

Step 2: Purge w/ Can Control VSV open

VP G : -1.5
VP A : 760.5
Purge VSV- Open
CCV- Open

Step 3: Pressure Equalize

VP G : .735
VP A : 762.7
Purge VSV- Close
CCV- open

Step 4: Sealing System

VP G : Start .735 then rises past 13
VP A : Start .762.7 then rises past 775

Purge VSV- Closed
CCV- Closed

step 5: Apply Vacuum

VP G : -12.3
VP A : 749.7

Purge VSV- open
CCV- Closed

Step 6: Vacuum Seal

VP G : rise from -12.3 to 13+
VP A : rises from 749 to 775+

Purge VSV - Closed
CCV- Closed




To me, I would seem that the Purge VSV, CCV, and Vapor pressure sensor are working. However, the results in step 4 and 6, dont really seem correct to me. I would assume that these numbers mean I have a leak....


I should also note that that the fuel tank IS full. It says in the instructions that the fuel level should be between 3/4 and 1/4 tank... Maybe this is my problem.


I have not yet driven then truck yet with this new vacuum hose routing. I plan to in the coming days. I am typing all this in hopes that someone might be familiar with EVAP stuff and be able to tell me what I'm looking at.

 

yes, fuel needs to be between 3/4 and 1/4. It will not 'ready' unless in that range.

 

for the Evap monitor to run complete it requires 2 complete drive cycles, preferably with an over night sit. Coolant temp and air temp have to be within I think 15 degrees of each on a cold start.

Is she throwing a code?

 

You want a picture of my EVAP box?

I am familiar with the parameters, I was really just hoping that someone well versed in emmisions monitoring could tell me if the results seemed correct or if I was going to get more codes. I guess I'll just have to wait and see.


Prior to rerouting some vacuum lines I was getting a P0446, and P0452.

 

no , pics of this v8! that sounds sic.

 

Sayin...

 

I have a build thread in my sig I thought

 

Thread, that lead to another thread.. worst pictures are dead....

:ded:

My dreams have died.

 

Pics should not be dead now. tbob fixed it I thought

 

The issue is with photobucket. They charging people to host images externally.

 

Here comes the choo-choo train.... Open wide......

https://www.tacomaworld.com/threads/comatizeds-tacoma-2uz-v8-swap.301564/

 

This one photobucket ownage.

 

Oh, that's the one in my sig? Hmmmm. Yea, I haven't been on TTORA for a few years now.... My Tacoma world thread is pretty much current...

 

Well it was in the thread that was in your sig. I believe you said more details were listed at TTORA. But no biggy though.

 

I updated it. Some stuff was more detailed in the beginning...


Can I have my thread back now?

 

I never took it LOL. Sorry.

 

thanks for the effort dude,

 

As for the original question, if you're not throwing any CEL, and your handy dandy ecu tool is giving you readings I'd say you're fine.

 

I currently have a pending p0446